LMX2571 - How to handle FSK_Dx pin when FSK modulation is not used.

Kawai

Guru 19785 points

Hi Team,

I see following post, however, please allow me to confirm my recognition.

https://e2e.ti.com/support/clocks/f/48/p/524760/1907942#1907942

I believe FSK_Dx pins (Pin 4,5,6,7) are logic inputs. When FSK modulation is not used, can you leave these pins open ? Are they internally pulled up or pulled down ?

Best Regards,

Kawai

over 9 years ago

0 Julian Di Matteo over 9 years ago

TI__Expert 4085 points

Hi Kawai,

Leave pins 4-7 floating if you are not using them. It seems they are internally pulled down.

Best Regards,

Julian

If my post answers your question, please click on "Verify Answer" button.

0 Kawai over 9 years ago in reply to Julian Di Matteo

Guru 19785 points

Hi Julian-san,

Thank you for the answer.

Best Regards,
Kawai

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LMX2571 - How to handle FSK_Dx pin when FSK modulation is not used.